skos:altLabel | - boilermakers' union
- United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry
- United Association of Plumbers, Pipefitters and Sprinklerfitters
- Journeymen Plumbers
- Michigan Pipe Trades Association
- Pipe Fitters
- Pipefitters
- Pipefitters Local 208
- Pipefitters Local 537
- Plumbers
- Plumbers & Fitters UA Local 675
- Plumbers & Fitters UA, Local 675
- Plumbers Union Local 690
- Plumbers and Steam Fitters' Union
- Plumbers and Steamfitters
- Plumbers and Steamfitters Local 33
- Plumbers and Steamfitters Union
- Sprinkler Fitters Local 281 UA
- Sprinkler Fitters Local 550
- Steamfitters Union
- UA Local 38
- United Association of Journeymen Plumbers
- United Association of Plumbers and Pipefitters
- United Association of Plumbers and Steam Fitters
- United Association of Plumbers and Steamfitters
- United Association of Plumbers and Steamfitters of the United States and Canada
- plumbers' union
- steamfitters
- United Association of Union Plumbers and Pipefitters
- United Association of Journeymen and Apprentices of the Plumbing, Pipefitting and Sprinkler Fitting Industry of the United States and Canada
- Plumbers and Steamfitters of the United States and Canada, United Association of
- United Association of Pipefitters, Air Conditioning, and Refrigeration
- United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry
- The United Association of Journeymen and Apprentices of the Plumbing, Pipefitting and Sprinkler Fitting Industry of the United States and Canada
- United Association of Journeymen Plumbers, Gas Fitters, Steam Fitters, and Steam Fitters' Helpers of the United States and Canada
- United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada
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